The book "Industry 4.0: The Industrial Internet of Things" by Alasdair Gilchrist delves into the technical and business aspects of the Industrial Internet of Things (IIoT). It aims to bridge the gap between high-level business presentations and the underlying technical complexity that supports the IIoT. The book is structured to first introduce the potential business incentives and successful use cases of the IIoT, then move on to the technical issues required to build an IIoT network. It covers various technologies, protocols, and middleware platforms that enable the creation of real-world IIoT networks. The book also discusses the role of mediation services and platforms in connecting and visualizing these networks. Finally, it explores the broader concept of Industry 4.0, focusing on manufacturing and how it can transform industries and reindustrialize nations.The book "Industry 4.0: The Industrial Internet of Things" by Alasdair Gilchrist delves into the technical and business aspects of the Industrial Internet of Things (IIoT). It aims to bridge the gap between high-level business presentations and the underlying technical complexity that supports the IIoT. The book is structured to first introduce the potential business incentives and successful use cases of the IIoT, then move on to the technical issues required to build an IIoT network. It covers various technologies, protocols, and middleware platforms that enable the creation of real-world IIoT networks. The book also discusses the role of mediation services and platforms in connecting and visualizing these networks. Finally, it explores the broader concept of Industry 4.0, focusing on manufacturing and how it can transform industries and reindustrialize nations.